US2863067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternated control system with temperature compensated frequency discriminator
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1954-08-24
•
Granted: 1958-12-02
•
Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 Seldner Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:25
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2128649A
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US2572424A
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US2623177A
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US2654032A
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US2611031A
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US2710368A
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US2679588A
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US2751550A
Cited
US2751549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |